What is perhaps more important, is that the characteristic bulk is achieved by older dominant males in clearly delineated territorial areas. As an adult Komodo can consume up to 80% of its body weight in one gorging, weight is a highly variable factor, and is largely dependent on the most recent feeding. A typical weight for an adult Komodo in the wild is 70 kilograms.

Komodo dragons are first and foremost opportunistic carnivores, and predators second.  Although the Komodo can sprint briefly at 20 kilometers an hour, it does not chase down game as do the larger mammalian predators. The Komodo is a stealth predator, which lies motionless and camouflaged alongside game trails for the unwary, which tend to be the very young, the old and the infirm. In an attack, the Komodo lunges at its victim with blinding speed and clasps it with the serrated teeth of the jaw. Prey are rarely downed in the initial attack unless the neck is broken or ceratoid artery severed. The more likely outcome is escape, followed by death a few hours or days later from septicemia introduced by the virulent strains of bacteria found in the saliva of the Komodo dragon (the Komodo survive primarily on carrion and  ingest the bacteria when feeding).

The Komodo has two highly developed sensory organs – the olfactory and the Jacobson’s  - which allow the dragon to detect rotting carcasses from distances as great as 10 kilometers. The yellow forked tongue is

constantly being flicked in and out of the mouth, “tasting the air”, and inserted into the Jacobson’s organ located in the roof of the mouth. The individual tips are highly sensitive and are capable of discriminating odors in the magnitude of millionths of a part. Using the information garnered, the dragon wends in a seemingly random, winding path which becomes straighter the closer it approaches to the carrion. The Komodo is typically a communal feeder and any number of dragons might arrive at the site of the carcass.

Socialization occurs during feeding at carrion sites, as does mating. The abdomen is slashed first and the intestines and stomach contents scattered. Young juveniles roll in the fecal matter to mask their scent from aggressive adults, which attack and sometimes kill juveniles during feeding. The dominant male feeds until sated, followed by other dragons in order of size. While the dominant male is gulping down hindquarters and ribcages, the braver dragons chance foraging a few scraps. Virtually the entire carcass is consumed in the process– head, fur, hooves and bones. After feeding, the Komodos become quiescent and approachable while their digestive tracts are converting the food into fat energy stored in the tail.

Between the months of  May and August, mating occurs at and around feeding sites. As males outnumber females in a ratio of nearly four to one, the dominant male must fend off other suitors before mating. Males will engage in slashing, biting and bipedular rearing onto the tail, until the dominant male is acknowledged by displays of subservience and the vanquished flees. The female is forced into a prone position while the male tongue flicks her body, and in particular, the fold between the torso and the rear leg close to the cloaca. With Komodos, the male hemipenes are located here as are the female genetalia. Once prone, the male mounts onto the back of the female and inserts one of the two hemipenes into her cloaca , depending on which side he is perched. The month of September is when a clutch of 15-30 eggs is buried in a nest dug with the powerful claws of the female dragon. A typical nesting site is in the composting vegetative mounds of the maleo birds which are indigenous to Komodo.

The gestation period for the eggs is eight to nine months. Hatchlings, which average 40 centimeters in length and weigh 100 grams, emerge from the nest in April and immediately scramble up the nearest tree to avoid being eaten by the adults.  There are plenty of small lizards, insects and mammals in the canopy after the brief rainy season in January and February to sustain the juveniles until they descend to the forest floor roughly a year later. This period of change between an arboreal and a terrestial habitat, when the juveniles are a meter in length, is a time fraught with danger.  The juvenile Komodo is just too bulky to safely ascend many trees, and not big enough to outrun a ravenous and determined adult. Cannibalism is a fact of life for this species, and perhaps is an evolutionary response to the harsh, arid climate of Komodo.

Prey species for the dragon on Komodo island include deer, boar, wild buffalo, the maleo bird, snakes, reptiles and small mammals. On Rinca, the monkeys and wild horses found there are also constitute prey, as do the goats raised by the local people. On the odd occasion people are also attacked by the Komodo dragon. There have been eight recorded instances of attacks on humans since Komodo has become a national park, almost all of which occurred on Rinca.
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LOMBOK